airport ownership  
in the 1970s, airports were typically government owned
at a national level  
examples include heathrow, johannesburg, dublin, paris cdg, sydney
at a local level  regional uk airports, us airports  mixed  frankfurt, amsterdam    airport ownership  managed in three different ways  directly by the government  
particularly in asia, middle east, africa and south america
semi-autonomous  examples include heathrow and amsterdam  
concessions with some private sector involvement
venice, zurich    airport ownership  
the 1990s has seen increased privatisation of airports
driven by growth in passenger demand  reducing governmental budgets  
privatisation of airlines requiring a more commercial outlook
process began in the uk  
the 1990s has seen privatisation become more common, as the potential commercial returns from airports become visible
  airport ownership  for airport privatisation  reduce the need for public sector investment  free access to commercial markets  reduce government control  freedom to diversify  improved efficiency  greater competition  against airport privatisation  airports are national/ regional assets  political beliefs  monopoly position  priority to shareholders over local people    types of airport ownership  government owned and operated  

e. g

finland, and some airports in the us.
mixed private-government ownership, with the private sector owning a majority share

e. g

denmark, austria, and switzerland.
mixed government-private ownership, with the government owning a majority share

e. g

hamburg, france, china, and kansaijapan.
government ownership but contracted out to an airport authority under a long term lease   (이하 생략)